Method of Processing Dummy Pattern Based on Boundary Length and Density of Wiring Pattern, Semiconductor Design Apparatus and Semiconductor Device

1. A semiconductor device, comprising: a first wiring pattern in a first region; a second wiring pattern in a second region; and at least one first dummy pattern formed in the first region and at least one second dummy pattern fainted in the second region, wherein a total area of the at least one first dummy pattern is the same as a total area of the at least one second dummy pattern and a total length of a pattern periphery of the at least one second dummy pattern is longer than a total length of a pattern periphery of the at least one first dummy pattern, and wherein a size of an area of the first region is the same as a size of an area of the second region.

2. The semiconductor device according to claim 1 , wherein a difference between a pattern density of the first wiring pattern in the first region and a pattern density of the second wiring pattern in the second region falls within a first range, and a difference between a total length of pattern periphery of the first wiring pattern in said first region and a total length of pattern periphery of the second wiring pattern in said second region falls within a second range.

3. The semiconductor device according to claim 1 , wherein the at least one second dummy pattern comprises a polygon.

4. The semiconductor device according to claim 1 , wherein shapes of the first and second regions are rectangular.

5. A semiconductor device, comprising: a first wiring pattern in a first region; a second wiring pattern in a second region; and a first dummy polygon pattern formed in the first region and a second dummy polygon pattern formed in the second region, wherein an area of the first dummy polygon pattern is the same as an area of the second dummy polygon pattern and a total length of a pattern periphery of the second dummy polygon pattern is longer than a total length of a pattern periphery of the first dummy polygon pattern, and wherein a size of an area of the first region is the same as a size of an area of the second region.

6. The semiconductor device according to claim 5 , wherein shapes of the first and second regions are rectangular.

7. A semiconductor device, comprising: a first wiring pattern in a first region; a second wiring pattern in a second region; and a first dummy polygon pattern formed in the first region and a second dummy polygon pattern formed in the second region, wherein an area of the first dummy polygon pattern is the same as an area of the second dummy polygon pattern and a number of sides of the second dummy polygon pattern is more than a number of sides of the first dummy polygon pattern, and wherein a size of an area of the first region is the same as a size of an area of the second region.

8. The semiconductor device according to claim 7 , wherein shapes of the first and second regions are rectangular.